EP 0979163 B1 20020710 - APPARATUS AND METHOD FOR CONTROLLING EXPOSURE OF A SOLIDIFIABLE MEDIUM USING A PULSED RADIATION SOURCE IN BUILDING A THREE-DIMENSIONAL OBJECT
Title (en)
APPARATUS AND METHOD FOR CONTROLLING EXPOSURE OF A SOLIDIFIABLE MEDIUM USING A PULSED RADIATION SOURCE IN BUILDING A THREE-DIMENSIONAL OBJECT
Title (de)
GERÄT UND VERFAHREN ZUR KONTROLLIERTEN BELICHTUNG EINES AUSHÄRTBAREN MEDIUMS UNTER BENUTZUNG EINER GEPULSTEN STRAHLUNGSQUELLE BEI DER HERSTELLUNG DREIDIMENSIONALER GEGENSTÄNDE
Title (fr)
APPAREIL ET PROCEDE POUR REGLER L'EXPOSITION D'UN MILIEU SOLIDIFIABLE A UNE SOURCE DE RAYONNEMENT PULSE DANS LA CONSTRUCTION D'UN OBJET TRIDIMENSIONNEL
Publication
Application
Priority
- US 9808133 W 19980422
- US 84785597 A 19970428
Abstract (en)
[origin: WO9848997A1] Methods and apparatus for forming three-dimensional objects from a medium solidifiable when subjected to a beam of pulsed radiation wherein the pulses of radiation are made to occur when the beam is directed to desired pulsing locations on a target surface of the medium. Preferred embodiments of the instant invention comprise a pulsed laser assembly, including a laser and a pulse generation circuit, a control computer, a plurality of mirrors and mirror encoders. The computer controls the movement of the mirrors which guide the laser beam across the surface of the solidifiable medium. The pulsing of the laser beam is correlated to the position of the mirrors and thus, is not dependent upon time. Pulsing linked to position of beam placement allows controlled and repeatable use of a pulsed beam for the formation of objects.
IPC 1-7
IPC 8 full level
B29C 67/00 (2006.01); B29C 35/08 (2006.01)
CPC (source: EP US)
B29C 64/135 (2017.07 - EP US); B29C 64/40 (2017.07 - EP US); B33Y 30/00 (2014.12 - EP US); B33Y 50/02 (2014.12 - US); B29C 2035/0838 (2013.01 - EP US); B33Y 10/00 (2014.12 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 9848997 A1 19981105; AU 6978398 A 19981124; DE 69806476 D1 20020814; DE 69806476 T2 20030306; EP 0979163 A1 20000216; EP 0979163 B1 20020710; JP 2001524040 A 20011127; JP 2007118612 A 20070517; JP 3980655 B2 20070926; US 6001297 A 19991214; US 6215095 B1 20010410
DOCDB simple family (application)
US 9808133 W 19980422; AU 6978398 A 19980422; DE 69806476 T 19980422; EP 98915652 A 19980422; JP 2007000465 A 20070105; JP 54711198 A 19980422; US 31393899 A 19990518; US 84785597 A 19970428